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IgorLugansk [536]
3 years ago
12

For f(x) = -5x + 4, what is the value of x for which f(x) = 20

Mathematics
1 answer:
Andru [333]3 years ago
4 0

Answer:

- 3.2

Step-by-step explanation:

- 5x + 4 = 20

- 5x = 20 - 4

- 5x = 16

x = 16 / - 5

x = - 3.2

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C I’m pretty sure that’s what is it
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3 years ago
HELP I WILL MARK YOU BRAINLIEST PLEASE
valkas [14]

Question: Mai had $14.50. She spent $4.35 at the snack bar and $5.25 at the arcade. What is the exact amount of money Mai has left?

Answer: $4.90

Steps: Step 1: Find operation: The operation in this problem is subtraction because words such as "spent" means that she used money, meaning we subtract.

Step 2: Figure out order of numbers: Now that we know that the operation is subtraction, we need to know what numbers to subtract. The problem says that Mai had $14.50, which means that this is the total amount of money she had when she started. Spent means that Mai used money, so this means that we subtract like this: $14.50-$4.35-$5.25.

Step 3: Subtract: Now that we know what operation to use, and what order to use the numbers, we can finish the problem:

<h2>                   $14.90</h2><h2>            -      $  4.35</h2><h2>           -------------------</h2><h2>                    $10.15</h2><h2>              -    $  5.25</h2><h2>           --------------------</h2><h2>                      $4.90 </h2>

--------------------------------------------------------------------------------------------------------------

Question: Kristina rides her bicycle 384.25 miles over 29 weeks to and from her job. How many miles does she ride each week to and from her job if she rides the same amount each week?

Answer: 13.25

Steps: 1: Find operation: To solve this question, we need to find the operation. Words such as "same amount each week" mean that this is division.

Step 2: Figure out order of numbers: Now, we need to figure out what to divide by. We divide 384.25 by 29 because it say that she rides 384.25 miles over 29 weeks.

Step 3: Divide: Now, we will solve the equation: 384.25 divided by 29 is 13.25, so the answer is 13.25.

Hope this helps you!

P.s. Sorry I could not show how to divide 384.25 by 29.

                                 

<h2>                     </h2>
8 0
3 years ago
1. Complete the comparison: 3+ 7 &gt; ?<br> A. 10-2<br> B.9 + 4<br> C. 7+3<br> D. 8 + 2
iVinArrow [24]

Answer:

<u>The correct answer is A. 10 - 2</u>

Step-by-step explanation:

1. Let's make all the comparisons for the four alternatives:

A.  3 + 7 > 10 - 2 ⇒ 10 > 8, the comparison is correct because 10 is bigger than 8.

B.  3 + 7 > 9 + 4 ⇒ 10 > 13, the comparison is not correct because 10 is less than 13.

C.  3 + 7 > 7 + 3 ⇒ 10 > 10, the comparison is not correct because 10 is equal to 10.

D.  3 + 7 > 8 + 2 ⇒ 10 > 10, the comparison is not correct because 10 is equal to 10.

<u>The only correct comparison is A. 10 - 2.</u>

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Find the answer key on google

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3 years ago
Read 2 more answers
What does X equal?<br><br> 2x + 2 = 4x + 4
Inessa [10]

Answer:

x = -1

Step-by-step explanation:

Given

2x + 2 = 4x + 4 ( subtract 4x from both sides )

- 2x + 2 = 4 ( subtract 2 from both sides )

- 2x = 2 ( divide both sides by - 2 )

x = - 1

8 0
3 years ago
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